The HPC12 from Stackpole is a high power surface mount resistor measuring 0.5 in. square by 0.4 in. high. It can handle 5 watts continuous power with no additional heat sink or air movement required. The HPC incorporates an anodized aluminum housing which allows it to handle significantly more power than other resistors of similar size without causing significant heat rise on the PCB. If the application has 400 lfm air movement, the HPC12 can handle 12.5 watts.Resistors from Stackpole

The HPC12 is available in tape and reel and bulk packaging.